Espanol.libretexts.org - SEO Checker

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Overview of the SEO Check
Meta information
83% 
Page quality
94% 
Page structure
75% 
Link structure
33% 
Server
83% 
External factors
100% 
SEO Score
Response time
0.76 s
File size
121.60 kB
Words
895
Media files
16
Number of links
39 internal / 7 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Home - LibreTexts Español
The length of the page title is perfect. (244 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
Bibliotecas LibreTexts: una colaboración multiinstitucional para desarrollar la próxima generación de textos de acceso abierto para mejorar la educación postsecundaria.
The meta description is too long: 1038 pixels from max. 1000 pixels. Optimize description
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://espanol.libretexts.org/
There is a valid canonical link specified.
Language
(Somewhat important)
Language detected in text: es
Language defined in HTML: es
Server location: United States of America
The following language is defined by HTML: es
Alternate/Hreflang Links
(Somewhat important)
There are no alternate links specified on this page.
Other meta tags
(Somewhat important)
There is no rel next meta tag on this page.
There is no rel prev meta tag on this page.
Domain
(Somewhat important)
This page is hosted on a subdomain. Use a top level domain for better SEO results.
The domain does not contain non-latin characters.
Page URL
(Somewhat important)
No parameters were found in the URL.
No session ID was found in the URL.
The URL does not have too many subdirectories.
Charset encoding
(Somewhat important)
The charset encoding (UTF-8) is set correctly.
Doctype
(Nice to have)
The doctype HTML 5 is set correctly.
The doctype is placed at first in the HTML code.
Favicon
(Nice to have)
The favicon is linked correctly.

Meta tags

NameValue
viewportwidth=device-width, initial-scale=1
generatorMindTouch
robotsindex,follow
descriptionBibliotecas LibreTexts: una colaboración multiinstitucional para desarrollar la próxima generación de textos de acceso abierto para mejorar la educación postsecundaria.
article:published_time2019-02-11T20:19:33Z
article:modified_time2024-12-19T17:15:32Z
langes
twitter:cardsummary
twitter:titleHome
twitter:descriptionBibliotecas LibreTexts: una colaboración multiinstitucional para desarrollar la próxima generación de textos de acceso abierto para mejorar la educación postsecundaria.
twitter:imagehttps://a.mtstatic.com/@public/production/site_12715/1551393810-logo.png
og:titleHome
og:site_nameLibreTexts Español
og:typearticle
og:localees_ES
og:urlhttps://espanol.libretexts.org
og:imagehttps://a.mtstatic.com/@public/production/site_12715/1551393810-logo.png
og:descriptionBibliotecas LibreTexts: una colaboración multiinstitucional para desarrollar la próxima generación de textos de acceso abierto para mejorar la educación postsecundaria.

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Page quality

Content
(Critically important)
These Typos were found:
  • fisica => física
This page contains 895 words. That's ok.
10.4% of the text are stop words.
The page contains a listing, which indicates a good text layout.
5 paragraphs were found on this page.
The text content is perfect.
No placeholders texts or images were found.
There are no duplicates on the site.
The average number of words per sentence of 12.8 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
A viewport "width=device-width, initial-scale=1" is provided.
At least one Apple touch icon is specified.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 18 tags for this page.
Image SEO
(Somewhat important)
Alt text (alternative text) is correctly used on all found images.
Social Networks
(Nice to have)
There are only a few social sharing widgets on the page. Make your website popular in social networks with social sharing widgets.
Additional markup
(Nice to have)
No additional page markup was found.
HTTPS
(Somewhat important)
This website uses HTTPS to protect privacy and integrity of the exchanged data.
All included files are also transferred via HTTPS.

Media list

URLAlt attributeTitle
...dn.libretexts.net/Logos/espanol_full.pngLibrary homepage
...dn.libretexts.net/Logos/espanol_full.pngLibrary homepage
...roduction/site_12715/1551393810-logo.pngLibreTexts Español
...02/mindtouch.page%23thumbnail?revision=1mindtouch.page#thumbnail
...01/mindtouch.page%23thumbnail?revision=1mindtouch.page#thumbnail
...13/mindtouch.page%23thumbnail?revision=1mindtouch.page#thumbnail
...06/mindtouch.page%23thumbnail?revision=1mindtouch.page#thumbnail
...10/mindtouch.page%23thumbnail?revision=1mindtouch.page#thumbnail
...04/mindtouch.page%23thumbnail?revision=1mindtouch.page#thumbnail
...09/mindtouch.page%23thumbnail?revision=1mindtouch.page#thumbnail
...05/mindtouch.page%23thumbnail?revision=1mindtouch.page#thumbnail
...12/mindtouch.page%23thumbnail?revision=1mindtouch.page#thumbnail
...08/mindtouch.page%23thumbnail?revision=1mindtouch.page#thumbnail
...07/mindtouch.page%23thumbnail?revision=1mindtouch.page#thumbnail
...03/mindtouch.page%23thumbnail?revision=1mindtouch.page#thumbnail
...11/mindtouch.page%23thumbnail?revision=1mindtouch.page#thumbnail

Page structure

H1 heading
(Critically important)
There is no H1 heading specified.
Headings
(Important)
The structure of headings is missing one or more levels. Do not skip heading levels.
Some headings do not have any content.

Heading structure

Heading levelContent
H2 Search
H2 Empty heading
H2 Error
H4 Text Color
H4 Text Size
H4 Margin Size
H4 Font Type
Some internal links have dynamic parameters. All internal URLs, which are not marked as nofollow, should not contain dynamic parameters.
Some anchor texts are used more than once.
The number of internal links is ok.
None of the anchor texts is too long.
There are 7 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://espanol.libretexts.org/Anchor Saltar al contenido principal
A-TITLE Pulse Intro para saltar al contenido principal
https://espanol.libretexts.org/Subdomain IMG-ALT Library homepage
/Under_Construction/Course_ShellsSubdomain school Campus Bookshelves
/BookshelvesSubdomain menu_book Bookshelves
/Special:Userlogin?readerViewSubdomain Anchor login Login
https://register.libretexts.org/New window Nofollow External Subdomain how_to_reg Request Instructor Account
https://commons.libretexts.org/New window Nofollow External Subdomain hub Instructor Commons
/?downloadsSubdomain Downloads expand_more
/?downloadpageSubdomain Download Page (PDF)
/?downloadfullSubdomain Download Full Book (PDF)
/?resourcesSubdomain Resources expand_more
/?pertableSubdomain Periodic Table
/?physconstSubdomain Physics Constants
/?scientificcalSubdomain Scientific Calculator
/?referencesSubdomain Reference expand_more
/?refmodalSubdomain Reference & Cite
/?toolsSubdomain Tools expand_more
/?helpSubdomain Help expand_more
/?helpmodalSubdomain Get Help
/?feedbackSubdomain Feedback
/?readabilitySubdomain Readability
https://espanol.libretexts.org/Subdomain Text duplicate IMG-ALT Library homepage
/Special:UserLogin?returntotitleSubdomain Inicio de sesión
A-TITLE Inicio de sesión
https://espanol.libretexts.org/Subdomain IMG-ALT LibreTexts Español
A-TITLE LibreTexts Español
/Special:UserLogin?returntotitleSubdomain Text duplicate Inicio de sesión
A-TITLE Inicio de sesión
/Special:UserPasswordSubdomain Contraseña olvidada
A-TITLE Recuperar contraseña perdida
https://espanol.libretexts.org/Subdomain No Text
https://libretexts.org/New window Nofollow External LibreTexts project
A-TITLE https://libretexts.org/
/BiologiaSubdomain Biología
IMG-ALT mindtouch.page#thumbnail
A-TITLE Biología
/NegocioSubdomain Negocio
IMG-ALT mindtouch.page#thumbnail
A-TITLE Negocio
/Ciencias_SocialesSubdomain Ciencias Sociales
IMG-ALT mindtouch.page#thumbnail
A-TITLE Ciencias Sociales
/Educacion_BasicaSubdomain Educación Básica
IMG-ALT mindtouch.page#thumbnail
A-TITLE Educación Básica
/EstadisticasSubdomain Estadísticas
IMG-ALT mindtouch.page#thumbnail
A-TITLE Estadísticas
/IngenieriaSubdomain Ingeniería
IMG-ALT mindtouch.page#thumbnail
A-TITLE Ingeniería
/FisicaSubdomain Física
IMG-ALT mindtouch.page#thumbnail
A-TITLE Física: La física es la ciencia natural que estudia la materia, sus constituyentes fundamentales, su movimiento y comportamiento a través del espacio y el ti...
/GeocienciasSubdomain Geociencias
IMG-ALT mindtouch.page#thumbnail
A-TITLE Geociencias
/HumanidadesSubdomain Humanidades
IMG-ALT mindtouch.page#thumbnail
A-TITLE Humanidades
/SaludSubdomain Salud
IMG-ALT mindtouch.page#thumbnail
A-TITLE Salud
/MatematicasSubdomain Matemáticas
IMG-ALT mindtouch.page#thumbnail
A-TITLE Matemáticas
/QuimicaSubdomain Química
IMG-ALT mindtouch.page#thumbnail
A-TITLE Química
/VocacionalSubdomain Vocacional
IMG-ALT mindtouch.page#thumbnail
A-TITLE Vocacional
https://espanol.libretexts.org/New window Subdomain Home
https://mindtouch.com/demoNew window External Powered by CXone Expert ®
A-TITLE MindTouch
https://www.nice.com/resources...New window Nofollow External Subdomain Powered by NICE CXone Expert
https://libretexts.org/legal/i...New window Nofollow External Legal
https://commons.libretexts.org...New window Nofollow External Subdomain Accessibility Statement

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://espanol.libretexts.org/"
HTTP header
(Important)
No X-Powered HTTP header is sent.
This page uses GZip for compressed data transmission.
Performance
(Somewhat important)
The page response time of 0.76 seconds is longer than the recommended limit of 0.4 seconds. A high response time unnecessarily slows down search engine crawling and results in bad user experience as well.
The file size of the HTML document is fine (122 kB).

HTTP Response Header

NameValue
content-typetext/html; charset=utf-8
content-length27932
dateTue, 24 Dec 2024 01:54:48 GMT
content-languagees-ES
x-xss-protection1; mode=block
content-security-policyupgrade-insecure-requests; default-src https: data: filesystem: blob: mediastream: 'unsafe-inline' 'unsafe-eval'; connect-src https: wss:
expires-1
cache-controlno-cache, no-store, must-revalidate, max-age=0
varyAccept-Encoding,Cookie
x-content-type-optionsnosniff
x-deki-siteid=site_12715
set-cookie86 Characters
strict-transport-securitymax-age=31536000; includeSubDomains
content-encodinggzip
x-cacheMiss from cloudfront
via1.1 9b253b6508bd634345864697c48abb50.cloudfront.net (CloudFront)
x-amz-cf-popFRA60-P10
alt-svch3=":443"; ma=86400
x-amz-cf-ids6NGG7Ir2NpA_68m4TLGjv2oadguJXbIAxCpJ-Ven6jHhTN46xDuXA==
statuscode200
http_versionHTTP/2

External factors

This website has excellent links from other websites.
This page has backlinks from 336 referring domains.
This page has 2,638 backlinks.
This page has backlinks from 307 different ip addresses.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

User-Agent: *
Crawl-delay: 5
Sitemap: https://espanol.libretexts.org/sitemap.xml
Request-rate: 1/5

# allow file attachments
Allow: /@api/deki/files/

# allow GSA authentication
Allow: /@api/deki/users/authenticate
Allow: /Special:UserLogin
Allow: /*title=Special:UserLogin
Allow: /@app/auth/
Allow: /@app/saml/

# block operational (non content) locations
Disallow: /Special:*
Disallow: /*title=Special:*
Disallow: /Template:*
Disallow: /*title=Template:*
Disallow: /User:*
Disallow: /*title=User:*
Disallow: /deki/
Disallow: /*action=*
Disallow: /@*

Similar sites

Search preview

espanol.libretexts.org
Home - LibreTexts Español
Bibliotecas LibreTexts: una colaboración multiinstitucional para desarrollar la próxima generación de textos de acceso abierto para mejorar la educación postsecundaria.

Most important keywords

Following keywords were found. You can check the keyword optimization of this page for each keyword.

KeywordResultRecheck
Text81%Check
libretexts73%Check
LibreTexts Español64%Check
row text59%Check
Español52%Check
org48%Check
Span48%Check
Size43%Check
UC Davis42%Check
search38%Check
Show more keywords and terms

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